Sounds like something that you can manage with an On Modifcation auto enter option that auto-enters the modification timestamp, time, or date.
1. Switch to layout mode,
2. Rightclick on your field, select "Conditional formating",
3. Set your conditions (you may want to use formulas) to format your field.
Thanks for the help guys, but managed to fix it, got a lot going on and simple simple conditional format wouldn't fix it hence the post.